CVE-2026-43078

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl When page reassignment was added to af_alg_pull_tsgl the original loop wasn't updated so it may try to reassign one more page than necessary. Add the check to the reassignment so that this does not happen. Also update the comment which still refers to the obsolete offset argument.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/2b781d1d4f933990318bcc5c68fb75a717379e42 https://git.kernel.org/stable/c/31d00156e50ecad37f2cb6cbf04aaa9a260505ef https://git.kernel.org/stable/c/710a4ce5d7afd9fe082c75dec282ab4a11c0fe71 https://git.kernel.org/stable/c/9532501e0f1b200ea80baa0e33e0b06da10bb271 https://git.kernel.org/stable/c/c8369a6d62f5abde9cbd4b62c45bf4b996be2468 https://git.kernel.org/stable/c/dea5fcf085f977b6c2de1b2d4ec4767b6c840d1f https://git.kernel.org/stable/c/f7826bc0b39928a4a22f6b815dd9940b22a63503 https://git.kernel.org/stable/c/fa48d3ea9cdbfb28c1fd6756c6c5cd01351aa51e

Frequently Asked Questions

What is CVE-2026-43078? +

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl When page reassignment was added to af_alg_pull_tsgl the original loop wasn't updated so it may try to reassign one more page than necessary. Add the check to the reassignment so that this does not happen. Also update the comment which still refers to the obsolete offset argument. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-43078? +

CVE-2026-43078 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-43078? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.